Illusion Labs is easily one of our favorite iPhone developers. Each of their iPhone titles so far have taken clear advantage of the platform's unique abilities in order to produce compelling gaming experiences. Illusion Labs has been responsible for the sort-of-platformer Sway as well as the finger skateboarding game TouchGrind. Both of these titles used multi-touch in a well-thought out control method that really complimented the gameplay of each.
When you look back at their first iPhone game Labyrinth, you may now consider it to be relatively primitive, but at the time of its release, Labyrinth really set the standard for ball rolling games. According to the developers, Labyrinth has been downloaded over 10 million times since its launch.